Toro 74412 - Cooling System Maintenance; Cleaning the Air Intake Screen; Cleaning the Cooling System; Brake Maintenance

Figure 44
1. Spring Washers
3. Dust Cap
2. Lock Nut
Cooling System
Maintenance
Cleaning the Air Intake
Screen
Before eac h use remo v e any build-up of g rass , dir t
or other debris from the cylinder and cylinder head
cooling fins , air intak e screen on flywheel end, and
carburetor -g o v er nor lev ers and linkag e . T his will
help insure adequate cooling and cor rect engine
speed and will reduce the possibility of o v erheating
and mec hanical damag e to the engine .
Cleaning the Cooling System
Clean the air intak e screen from g rass and debris
before eac h use .
Chec k and clean cooling fins and engine shrouds
ev er y 100 hours or yearly , whic h ev er comes first.
1. Diseng ag e the PTO and set the parking brak e .
2. Stop the engine , remo v e the k ey , and w ait for
all mo ving par ts to stop before lea ving the
operating position.
3. R emo v e the air intak e screen, recoil star ter and
fan housing ( Figure 45 ).
4. Clean the debris and g rass from the engine
par ts .
5. Install air intak e screen, recoil star ter and fan
housing ( Figure 45 ).
Figure 45
1. Air intake screen 4. Bolt
2. Fan housing
5. Nut
3. Recoil starter
Brake Maintenance
Adjusting the Parking Brake
Chec k the parking brak e for proper adjustment.
1. Chec k tire pressure of all 4 tires . R efer to
Chec king the Tire Pressure .
2. Diseng ag e the brak e lev er (lev er do wn).
3. Measure the distance v er tically betw een the
front of the brak e bar and the cro wn of the
tire; the measurement should be 7/8 inc h to 1
inc h (22 to 25 mm) ( Figure 46 ).
4. If the measurement is not cor rect, proceed to
the follo wing ste ps .
5. R emo v e the hair pin and cotter pin from the
brak e linkag e ( Figure 47 ).
36